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Meridian 1
Message Center
Description and operation
Document Number: 553-2691-100
Document Release: Standard 8.00
Date: August 1996
Year Publish FCC TM
© 1980, 1996
All rights reserved
Printed in the United States of America
Information is subject to change without notice. Northern Telecom reserves the right to make changes in design
or components as progress in engineering and manufacturing may warrant. This equipment has been tested
and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC rules, and the
radio interference regulations of Industry Canada. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses and can radiate radio frequency energy, and if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the user will be required to correct the
interference at their own expense.
SL-1 and Meridian 1 are trademarks of Northern Telecom.
Message Center
Description and operation

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Summary of Contents for Nortel QSY22

  • Page 1 Meridian 1 Message Center Description and operation Document Number: 553-2691-100 Document Release: Standard 8.00 Date: August 1996 Year Publish FCC TM © 1980, 1996 All rights reserved Printed in the United States of America Information is subject to change without notice. Northern Telecom reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant.
  • Page 2 Page iii of viii Revision history August 1996 Standard, Release 8.00. Reissued for X11 Release 22.0x. December 1994 Standard, Release 7.00. Reissued to include editorial changes and indexing. Due to the extent of the changes, revision bars are not used. August 1993 Standard, release 6.00.
  • Page 3: Table Of Contents

    Page v of viii Contents Description ....... . Reference documentation ........Incoming calls to the Message Center .
  • Page 4 QSY22 Power Supply ........
  • Page 5 List of figures Figure 1 QSY22 Power Supply connections ......Figure 2 QSY22 Power Supply circuit diagram ......
  • Page 6: Description

    Page 1 of 48 Description The Message Center allows an incoming trunk or internal call to be automatically routed to a Message Center if it is not answered at the original destination. The main functions of the Message Center are as follows: —...
  • Page 7: Incoming Calls To The Message Center

    Page 2 of 48 Description Incoming calls to the Message Center Calls coming into a Message Center can be direct or indirect. Direct message calls The Message Center can be accessed by a direct message call, which can take any of the following forms: —...
  • Page 8: Automatic Call Distribution (Acd) Message Center

    Description Page 3 of 48 Automatic Call Distribution (ACD) Message Center A special aspect of ACD is defined for optional use with Message Center. Each telephone assigned to the ACD-type Message Center is equipped with an ACD in-calls key/lamp pair. One Message Indication and one Message Cancellation key/lamp pair must also be equipped if Message Waiting Indication and control are required.
  • Page 9: Telephone Message Center

    Page 4 of 48 Description To answer the call, press the MSG IN-CALLS key. You can now take a message or release as required. If the caller wants to leave a message, take down the required information, then pass it on to the called party. Press the MSG INDIC key to notify the called party that they have a message waiting.
  • Page 10 Description Page 5 of 48 When a Message Center call comes in and the called DN displays, the MSG INDIC lamp at the operator’s telephone reflects the status of the called telephone’s Message Waiting lamp as follows. If Audible Message Waiting (AMW) is equipped in place of the lamp, interrupted dial tone indicates the called party’s status.
  • Page 11: Attendant Message Center

    Page 6 of 48 Description A telephone with Message Waiting may be equipped with a key/lamp pair that notifies you when a message is waiting. When this key is pressed, you are connected with the Message Center. 500/2500 telephones with Message Waiting Allowed Class of Service may be equipped with a neon lamp for visual indication.
  • Page 12 Description Page 7 of 48 When a Message Center call comes in and the called DN displays, the MSG INDIC lamp at the operator’s telephone reflects the status of the called telephone’s Message Waiting lamp as follows. If Audible Message Waiting (AMW) is equipped in place of the lamp, interrupted dial tone indicates the called party’s status.
  • Page 13: Message Retrieval Calls

    Page 8 of 48 Description Message retrieval calls All telephones have Message Waiting capability, and any SL-1 or Meridian digital telephone (except the M3000) can function as a Message Center. The DN used for message taking should be the prime DN if Message Waiting lamp Indication and Cancellation are desired.
  • Page 14: Placing A Message Retrieval Call

    Description Page 9 of 48 Telephones Without a Message Waiting lamp As an option in X11 Release 2, Message Waiting Indication can be provided by AMW (a 120 ipm interrupted dial tone) instead of a Message Waiting lamp, or key/lamp pair when the user goes off hook at the telephone.
  • Page 15: Answering A Message Retrieval Call

    Page 10 of 48 Description Answering a message retrieval call ACD Message Center The message retrieval call is presented on the MSG IN-CALLS key of a Message Center SL-1 telephone, and the digit display shows the DN of the calling telephone. The MSG CANC lamp reflects the state of the caller’s Message Waiting indication as follows: —...
  • Page 16: Direct Message Waiting Lamp Control

    Description Page 11 of 48 The Phantom Message Center ACD DN is assigned to overflow to the MSG CENTER ICI key on the Attendant Console. When a direct Message Center call comes into the console, the MSG CENTER ICI key flashes. To answer the call, the Message Center operator presses the MSG CENTER ICI key or a free LPK key.
  • Page 17: Query And/Or Deactivate

    Page 12 of 48 Description Query and/or deactivate The operator presses the MSG CANC key, and the associated lamp lights. The operator then dials the DN. No Ringback is heard, but the state of the MSG CANC lamp reflects the state of the user’s Message Waiting Indication in the same way as the MSG INDIC lamp previously described.
  • Page 18: Feature Requirements

    Description Page 13 of 48 Feature requirements The Network Message Service (NMS), package 175 requires the Message Center, package 46, for support. NMS requires all the packages necessary to support the Integrated Services Digital Network (ISDN), with package 148 as a minimum. Network Message Services in the Meridian Mail environment require the following packages: —...
  • Page 19: Message Waiting Indication (Mwi) Interworking

    Page 14 of 48 Description Message Waiting Indication (MWI) Interworking With X11 Release 19, centralized message services are now provided for a corporate network, consisting of Meridian 1 and Centrex (DMS-100) systems. This means that a user on a Meridian 1 system can directly access the voice message system on a DMS-100 and vice versa.
  • Page 20: Feature Requirements

    Description Page 15 of 48 Feature requirements MWI Interworking requires the following for each node: — Originating node (the node that has Message Center users) • NMS package 175 • ISDN Signaling package 145 • ISDN Primary Rate Access package 146 or ISDN Signaling Link package 147 •...
  • Page 21 Page 16 of 48 Description — Tandem node(s) (the node[s] that do not have Message Center users) • ISDN Signaling package 145 • ISDN Primary Rate Access package 146 or ISDN Signaling Link package 147 • ISDN Network Services package 148 •...
  • Page 22: Equipment Requirements

    Page 17 of 48 Equipment requirements User telephones A Message Center operator can activate a Message Waiting Indication at any of the following telephones: — SL-1 telephones with MESSAGE WAITING key/lamp pair assigned — 500 telephones (equipped with a Message Waiting lamp) —...
  • Page 23: Standard 500/2500 And Sl-1 Telephones

    Page 18 of 48 Equipment requirements Standard 500/2500 and SL-1 telephones Message Waiting Indication cannot be provided visually at these telephones. The user must call the Message Center by dialing the Message Center DN to check to see if there are any messages. If the system is equipped with X11 Release 2 or later, AMW can be provided when the user goes off hook in the form of an interrupted dial tone (120 ipm).
  • Page 24: Message Center Telephones

    Equipment requirements Page 19 of 48 Message Center telephones The following types of apparatus are suitable for use in a Message Center: — 16-digit display SL-1 telephones — 16-digit display attendant consoles SL-1 telephones ACD Message Center 16-digit display SL-1 telephones are recommended for use in an ACD-type Message Center.
  • Page 25: Network Message Services

    Page 20 of 48 Equipment requirements Network Message Services Network Message Services supports the following telephones: — 500/2500 telephones — SL-1 telephones — Digital telephones • M2009 • M2012 • M2018 • M2112 • M2317 • M3000 — Meridian Modular Telephones •...
  • Page 26: Mwi Interworking

    Equipment requirements Page 21 of 48 MWI Interworking MWI Interworking requires the following equipment: — Message Center for Meridian 1 system • Meridian Mail (requires Release 7 software) — Centrex switches • DMS-100 (requires BCS 36 for interworking) • DMS-250 •...
  • Page 27: System Requirements

    QSY22 Power Supply Power to operate the Message Waiting lamps for 500 and 2500 telephones is supplied by the QSY22 Message Waiting Power Supply Unit. (SL-1 telephones do not require this power supply.) This unit replaces the earlier QSY19 Power Unit.
  • Page 28: Description

    This provides –150 V dc power to the cabinet in which the QSY22 is mounted. The fuses are rated at 0.25 A each and are numbered 1 to 7 (from connector J14) and 10 to 16 (from connector J15).
  • Page 29: Qsy22 Power Supply Connections

    System requirements Page 25 of 48 Figure 1 QSY22 Power Supply connections Left mounting bracket PO634871 Q S Y 2 2 C MSG WTG PWR SPLT –150V FA –150V FA Fuse block Fuse –150V OUT –150V OUT P14 and P15...
  • Page 30: Qsy22 Power Supply Circuit Diagram

    Page 26 of 48 System requirements Figure 2 QSY22 Power Supply circuit diagram L1 QHP1488 TB1 1 48 V 6.25A 470 µF 3300 µF Slo Blo 63 V TB1 2 63 V GRD in TB1 3 GRD out TB1 4 150 V ±5% R23...
  • Page 31: Qsy19 Power Supply

    QCA8, QCA23, QCA28, and QCA37 cabinets in the same way as the QSY22. The inputs and outputs are fused in the same way as the QSY22; however, there is no alarm LED on the front panel.
  • Page 32: Qsy19 Power Supply Connections

    Page 28 of 48 System requirements Figure 3 QSY19 Power Supply connections (This unit is no longer available) Q S Y 1 9 A Fuse for -150V to QBL16 (1.33A) 553-5854 TB1-1 (-48V IN) Input fuse (6A) TB1-2 Load TB1-3 -150V Out P14 connectors from cabinet harness 553-2691-100...
  • Page 33: Figure 4

    System requirements Page 29 of 48 Figure 4 QSY19 Power Supply circuit diagram –150 V –50 V TB1-3 Power Supply (–150 V output) –48 V Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 3 K 10 W F1 to F7 are 0.18 each.
  • Page 34: Figure 5

    Page 30 of 48 System requirements Figure 5 QBL16 Power Distribution Unit connections –150 V –50 V TB1-3 Power Supply (–150 V output) –48 V Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 3 K 10 W F1 to F7 are 0.18 each.
  • Page 35: Figure 6

    System requirements Page 31 of 48 Figure 6 QBL16 Power Distribution Unit circuit diagram –150 V Pin 1 from Power Supply Pin 2 Pin 3 P14 plug Pin 4 socket Pin 5 Pin 6 Pin 7 Fuses are 0.18A each. 553-2022 Message Center Description and operation...
  • Page 36: Pe Cabinets And Shelves

    Page 32 of 48 System requirements PE cabinets and shelves The power unit and QBL16 Distribution Unit can be used with PE cabinets of the following vintages: — QCA8: vintage E or subsequent — QCA7: vintage D or subsequent — QCA23, QCA28, QCA37: all vintages These cabinets are equipped with wiring harnesses that incorporate a cable and P14 connector.
  • Page 37: Maintenance

    System requirements Page 33 of 48 Maintenance Maintenance diagnostic programs are provided by the software to control and test the Message Center services. Message Waiting lamps and set indicators on Meridian products can be tested on a system basis. For a complete description of the overlay programs involved, and their operation, please refer to the X11 Software input/output guide.
  • Page 38: Power Supply Installation

    Procedure Note: The QSY22 includes the cables required for the –48 and –150 V power leads. The cabinet wiring harness may or may not contain a P14 plug, depending on whether or not PE is provided in the cabinet.
  • Page 39 Connect the BLACK lead (with two lugs) between the TB1 terminal 3 of the QSY22 unit and the ground bus in the center of the cabinet. Connect the other BLACK lead (lug end) to the TB1 terminal 2 of the QSY22 unit and the ground terminal (1) of the TBC.
  • Page 40: Qbl16

    Procedure 2. This unit is mounted in the QCA7 companion cabinet next to the cabinet containing a QSY22 or QSY19, and in the same relative location within the cabinet as the QSY22/QSY19. Procedure 2 Installing the QBL16 Message Waiting Distribution Box Position the QBL16 unit in the QCA7 cabinet, and secure it with four mounting screws.
  • Page 41: Feature Interaction

    Page 39 of 48 Feature interaction ACD Message Center The operation of ACD Message Center telephones is basically the same as an ACD system with incoming call queues and available agent queues. The ACD Message Center cannot operate in combination with an Attendant Message Center.
  • Page 42 Page 40 of 48 Feature interaction Call Forward (All Calls) Call Forward should be denied on telephones serving as the Message Center. On a telephone basis, Call Forward takes precedence over the Message Center. If a call is forwarded to another telephone, activation of Message Waiting depends on whether or not the second telephone has Message Waiting Allowed.
  • Page 43 Feature interaction Page 41 of 48 These telephones have the capability to light or extinguish Message Waiting lamps by manually entering the DN of the telephone for which a message was taken. Call processing is the normal call processing for CFNA, not the Message Center call processing.
  • Page 44 Page 42 of 48 Feature interaction User Selectable Call Redirection (USCR) USCR allows the user to perform the following two tasks: — To assign the four redirection DNs from the telephone. These DNs include the CFNA DN and the external CFNA DN (if it exists). —...
  • Page 45: Message Center Packaging

    Page 43 of 48 Message Center packaging If an ACD Message Center is not required, the customer must order only the Message Center package. However, if an ACD Message Center is required, the appropriate ACD package should be ordered in addition to Message Center.
  • Page 46 Family Product Manual Contacts Copyright FCC notice Trademarks Document number Product release Document release Date Publish Meridian 1 Message Center Description and operation © 1980,1996 Northern Telecom All rights reserved Information is subject to change without notice. Northern Telecom reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant.

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